1. General Introduction
Fisher DVC6200 valve controller is a Hart type which converts a two wire 4 to 20mA control signal into a pneumatic output to an actuator. With the modular design, critical working components can be replaced without removing field wiring or pneumatic tubing. The two stage design provides quick response to large step changes and precise control for small set point changes; magnet non-contact feedback system can detect position feedback
problems and automatically revert to pressure control mode to keep the valve operational. Performance Diagnostics also provide access to full stroke dynamic testing of the valve assembly including: valve signature, dynamic error band, step response, and stroke check. These tests change the
instrument set point at a controlled rate and are performed while the valve assembly is isolated from the process.
2. Specification of Fisher DVC6200 valve controller
Description | Specifications |
Available Mounting | Sliding-stem linear and Quarter-turn rotary actuators |
Communication Protocol | HART 5 or HART 7 |
Input Signal | 4-20mA DC |
Output Signal | 6-140Psi |
Action | Single direct, single reverse or double action |
Air Consumption | 0.38 normal m3/hr at 1.4bar, 1.3 normal m3/hr at 5.5 bar |
Operating Ambient Temperature Limits | -40 to 85℃ (-40 to 185℉) |
Independent Linearity | ±0.50% of output span |
Vibration Testing Method | ANSI/ISA‐S75.13.01 Section 5.3.5 |
Electromagnetic Compatibility | EN 61326‐1:2013, Emissions—Class A |
Electrical Classification | CSA— Intrinsically Safe, Explosion‐proof, Division 2, Dust Ignition‐proof FM— Intrinsically Safe, Explosion‐proof, Non-Incentive, Dust Ignition‐proof ATEX— Intrinsically Safe, Flameproof, Type n, Dust by intrinsic safety IECEx— Intrinsically Safe, Flameproof, Type n, Dust by intrinsic safety or by enclosure |
3. Dimension & mounting of Fisher DVC6200 valve controller
